| 1 |
Metameric segmentation in annelids refers to |
Division of body int similar segments
Ability to regenerate its lost parts
Presences of jointed appendages
Presence ofnotochord
|
| 2 |
The annelids which lack setae is |
Leech
Earthworm
Polychaete
Nereis
|
| 3 |
Which of the following is a hermaphroditic annelid |
Earthworm
Nereis
Leech
Both b and C
|
| 4 |
Annelids have circulatory system. |
Closed
Open
Absent
Reduced
|
| 5 |
The excretory sytem of neamatodes is made up of |
Malpighian tubules
Renette cells
Nephridia
Flame cells
|
| 6 |
Nematodes are pseudocollomates because they |
Lack a body vavity
Have a false body caity not lined by mesoderm
Have a true coelom
Exhibit radial symmetry
|
| 7 |
Naematodesposses a nervous system that includes. |
Ganglia in each segment
A well developed brian
A nervering and four longitudinal nerve cords
a dorsal nerve cord
|
| 8 |
Which of the following is a free living nematode. |
Ascaris
Hookworm
Pin work
Caenorhabiditis
|
| 9 |
Which of the following is NOT a characteristics of nematodes. |
Closed circulatoy system
Unsegemetned body
Complee digestive system
Pseudocoelom
|
| 10 |
In echinoderms the calcareous endoskeleton in the form of plates called ossicles are derived from |
Mesoderm
Ectoderm
Endoderm
pinacoderm
|
| 11 |
Followign animals are exclusively marine |
Echinoderms
Molluscs
Arthropods
Annelids
|
| 12 |
Following are teh classesof arthropods |
arachnida
Gastropoda
Myriapoda
Crustacea
|
| 13 |
Which one of the following is a crustacean. |
Crayfish
Wasp
Spider
Centripede
|
| 14 |
Tagmata is the characteristis feature of |
Echinoderms
Arthropods
Annelids
Molluscs
|
| 15 |
The arthropods have asnexoskeleton or cuticle which is secreted by teh ................o f body wall. |
Exocuticle
epidermis
Gastrodermis
Endocuticle
|
| 16 |
Pulsating blood vessels closed type circulatory system respiratory pigment hemoglobin are the characteristics of. |
Sponges
Segmented works
Round works
Flatworks
|
| 17 |
The excretory system of annelids conssists of ciliated. funnel shaped tubular structue called. |
Metanehridia
Protonephridia
Nephridia
Nephron
|
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